Question 1 A coupled reaction, using a high energy chemical energy source such a

ID: 214851 • Letter: Q

Question

Question 1

A coupled reaction, using a high energy chemical energy source such as ATP, is necessary:

Question 2

Which of the following acts as an oxidizing agent in catabolic pathways?

ATP

Question 3

Which of the following is true of NADH?

Question 4

In addition to ATP what chemical serves as an initial immediate source of chemical energy during the first few seconds of intense exercise?

Question 5

Which tissue or compartment stores the highest amount of energy as triacylglycerides?

Question 6

The most important catabolic pathways converge on what intermediate prior to entering the citric acid cycle?

When the standard free energy of a reaction would otherwise be highly positive

Explanation / Answer

Q 1: A coupled reaction, using a high energy chemical energy source such as ATP, is necessary: For all reactions in a catabolic pathway

REASON :

Catabolism breaks down large molecules such as polysaccharides, lipids, nucleic acids and proteins into smaller units such as monosaccharides, fatty acids, nucleotides, and amino acids, respectively.Cells use the monomers released from breaking down polymers to either construct new polymer molecules, or degrade the monomers further to simple waste products, releasing energy.

Q.2: NAD+ acts as an oxidizing agent in catabolic pathways.

REASON : NAD+ serves as an oxidizing agent when it is reduced to NADH.

Q.3 : Which of the following is true of NADH?-NADH is a common product of anabolic pathways

REASON-NADPH participates in anabolic reactions, reactions that consume energy in order build up or synthesize larger molecules and produces NADH and H+.

Q.4 : In addition to ATP chemical serves as an initial immediate source of chemical energy during the first few seconds of intense exercise is - Phospocreatine.

REASON : The body stores energy in variety of chemical compounds during intense exercise like phosphocreatine,glycogen,triglycerides etc.

Q.5: Adipose tissue or compartment stores the highest amount of energy as triacylglycerides.

REASON:Triacylglycerol (TAG) in adipose tissue serves as the major energy storage form in higher eukaryotes.

Q.6 : The most important catabolic pathways converge on what intermediate prior to entering the citric acid cycle? - Acetyl-CoA

REASON- The pyruvate undergoes a process called oxidative decarboxylation to produce a key intermediate in metabolism, acetyl-CoA, which enters the TCA cycle

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Question 1 A coupled reaction, using a high energy chemical energy source such a

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